Advertisements
Advertisements
प्रश्न
What is the source of water in each of the following?
Wells
उत्तर
Wells – Groundwater
APPEARS IN
संबंधित प्रश्न
Freezing mixture contains ............. and .............
Use of excessive .................... by farmers causes water pollution.
Give one word for the following statement:
The gaseous form of water found in air .
Give balanced chemical equations to show the reaction between Magnesium and water.
Explain rain water harvesting.
Answer the following question.
Suggest three ways to conserve water.
What do you understand by permanent hardness?
Give a balanced equation for the following conversion:
Magnesium bicarbonate in temporary hard water to magnesium carbonate by boiling.
Fill in the blank:
Unpolluted water has _____ amount of dissolved oxygen.
Explain why oil spills have an adverse effect on marine life.
Select the correct word from the words in option to complete the sentence:
If pressure on the surface of water increases its boiling point ____ and freezing point ____.
Give a reason for the following:
Efflorescence is minimum during humid conditions.
Give a reason for the following:
A crusty ‘boiler scale’ is formed in boilers, when hard water is used.
Name the process which is responsible for the formation of droplets on the surface of a glass of cold drink. _______
______ plays a vital role in the evolution and survival of life.
Mountains helps to regulate the temperature of our earth.
In which one of the following state's water is present on Earth?
In which of the following activities will you use minimum amount of water?
Fill in the blanks selecting words from the following list (snow, rain, clouds, vapour, evaporation, transpiration.) Water, as _____ goes into atmosphere by the processes of ______ and _____ and forms ________, which on condensation fall in the form of ______ and _______.
